Explorer Emphasis Article

A perfect combo – Hydraulic fracture stimulation with horizontal drilling is contributing to the shale play successes in the United States and around the world.

American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

Think fast: A new risk-based approach to geomechanics is being used to help solve horizontal drilling problems.

American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

New dimensions: Geoscientists study how 3-D views of Eagle Ford outcrops are a great tool.

American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

The integrated teamwork approach used to reveal the assets of the Bakken shale has been effectively used for this unconventional conference.

American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

The U.S. Geological Survey crunched some more numbers with their eyes on the Bakken Formation in North Dakota and Montana. The results are in and the estimates are even larger.

American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

Complex considerations: Mention the Bakken Formation and most people think of unlimited potential – but several dynamics have a huge impact on productivity.

American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

Who’s got the last laugh now? The Uteland Butte once was a sandstone that operators quickly passed through – and often ignored – on their way to other targets. But things are changing in Utah.

American Association of Petroleum Geologists (AAPG)
American Association of Petroleum Geologists (AAPG)
Explorer Division Column EMD

In my 15 years as an AAPG member, I’ve actively been involved in planning and serving in various roles during AAPG’s Annual Convention and Exhibition (ACE), particularly when I lived in Houston.

American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

A recent study has been completed comparing North American and European shale gas and oil resource systems.

American Association of Petroleum Geologists (AAPG)
Workshop
Naples, Italy
Wednesday, 22 June Thursday, 23 June 2022, 8:00 a.m.–5:00 p.m.

Modelling carbonate sequences and reservoirs has always been a challenging task. Carbonate rocks are generated and subsequently modified by a large variety of biological, physical and chemical processes that start at the time of deposition and end today. To unravel the geological evolution and history of carbonate sequences is fundamental not only for understanding their hydrocarbons potential but also for their role as potential reservoirs for renewable energy (geothermal) or geological gas storage (CO2 and hydrogen). Several science disciplines are often involved to fully understand the characteristics of carbonate rocks and old approaches and new technologies and tools are nowadays applied in these types of sequences. The objective of this meeting is to allow scientists and engineers working on carbonate rocks in academia and industry to share their most recent experience, work, approaches and use of innovative technologies to increase the understanding of the very complex world of carbonates.

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American Association of Petroleum Geologists (AAPG)
VG Abstract

Production from unconventional petroleum reservoirs includes petroleum from shale, coal, tight-sand and oil-sand. These reservoirs contain enormous quantities of oil and natural gas but pose a technology challenge to both geoscientists and engineers to produce economically on a commercial scale. These reservoirs store large volumes and are widely distributed at different stratigraphic levels and basin types, offering long-term potential for energy supply. Most of these reservoirs are low permeability and porosity that need enhancement with hydraulic fracture stimulation to maximize fluid drainage. Production from these reservoirs is increasing with continued advancement in geological characterization techniques and technology for well drilling, logging, and completion with drainage enhancement. Currently, Australia, Argentina, Canada, Egypt, USA, and Venezuela are producing natural gas from low permeability reservoirs: tight-sand, shale, and coal (CBM). Canada, Russia, USA, and Venezuela are producing heavy oil from oilsand. USA is leading the development of techniques for exploring, and technology for exploiting unconventional gas resources, which can help to develop potential gas-bearing shales of Thailand. The main focus is on source-reservoir-seal shale petroleum plays. In these tight rocks petroleum resides in the micro-pores as well as adsorbed on and in the organics. Shale has very low matrix permeability (nano-darcies) and has highly layered formations with differences in vertical and horizontal properties, vertically non-homogeneous and horizontally anisotropic with complicate natural fractures. Understanding the rocks is critical in selecting fluid drainage enhancement mechanisms; rock properties such as where shale is clay or silica rich, clay types and maturation , kerogen type and maturation, permeability, porosity, and saturation. Most of these plays require horizontal development with large numbers of wells that require an understanding of formation structure, setting and reservoir character and its lateral extension. The quality of shale-gas resources depend on thickness of net pay (>100 m), adequate porosity (>2%), high reservoir pressure (ideally overpressure), high thermal maturity (>1.5% Ro), high organic richness (>2% TOC), low in clay (<50%), high in brittle minerals (quartz, carbonates, feldspars), and favourable in-situ stress. During the past decade, unconventional shale and tight-sand gas plays have become an important supply of natural gas in the US, and now in shale oil as well. As a consequence, interest to assess and explore these plays is rapidly spreading worldwide. The high production potential of shale petroleum resources has contributed to a comparably favourable outlook for increased future petroleum supplies globally. Application of 2D and 3D seismic for defining reservoirs and micro seismic for monitoring fracturing, measuring rock properties downhole (borehole imaging) and in laboratory (mineralogy, porosity, permeability), horizontal drilling (downhole GPS), and hydraulic fracture stimulation (cross-linked gel, slick-water, nitrogen or nitrogen foam) is key in improving production from these huge resources with low productivity factors.

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American Association of Petroleum Geologists (AAPG)

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